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Finding the Fourth Proportional to 448,446.33, 618,870.78 and 267,133.50

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Solution

The fourth proportional to 448,446.33, 618,870.78 and 267,133.50 is: 368,653.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,446.33 : 618,870.78 = 267,133.50 : x
  2. Step 2: Convert to fraction form
    448,446.33/618,870.78 = 267,133.50/x
  3. Step 3: Cross multiply
    448,446.33x = 618,870.78 × 267,133.50
  4. Step 4: Simplify right side
    448,446.33x = 165,321,117,509.13
  5. Step 5: Solve for x
    x = 165,321,117,509.13/448,446.33
  6. Step 6: Final answer
    x = 368,653.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.